Hot dweets by u/yonatan

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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yonatan

remix of d/2370 by u/magna

function u(t) {

c.width|=0;x.globalAlpha=.2;for(k=9;k--;)for(j=22;j--;)for(i=9;i--;)x.fillRect(540+i*99+T(m=t+k/540+i/150+j/2e3)**-9,400+j*9,50,9)

Apr 4 2018 10:06 PM UTC

}// 130/140

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k/540 // 9 iterations * 60 FPS

u/yonatan

#default
u/fujimotos

Oh, hey. It reminds me Power Point animations

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yonatan

function u(t) {

onmousedown=_=>d++
X+=S(m=d*Math.PI/2)
Y+=C(m)
x.fillRect(X*9&2047,Y*9&1023,9,9)
};{X=Y=d=0

Mar 29 2018 8:49 PM UTC

}// 91/140

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click to turn

u/fujimotos

Changing the callback to "x.fillStyle=hsl(${d++*25},50%,50%)" turns it into an abstract art generator :)
u/yonatan

swapping PI/2 for PI/5*6 gets you pentagrams :)

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yonatan

remix of d/7461 by u/Agnes

function u(t) {

c.width|=0
a=Math.abs
for(i=99,s=400;i--&&s>10;s/=a(C(t))+a(S(t)))x.setTransform(A=S(t*i),B=C(t*i),-B,A,960,540),x.strokeRect(-s,-s,s*2,s*2)

Mar 25 2018 5:08 PM UTC

}// 140/140

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https://askalice.me/twojs-paradox-fractal/

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yonatan

function u(t) {

for(w=(c.width=h=i=2e3)/50;i--;x.fillRect(X+S(p=t*4-d)*30,Y+C(p)*30,9,9))d=((h/2-(X=w*i%(h+w*8)-w*2))**2+(540-(Y=(i/58|0)*w-w*2))**2)**.5/65

Mar 21 2018 5:41 PM UTC

}// 140/140

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remix of cantelope's https://codegolf.tk/a/189

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yonatan

remix of d/7384 by u/nystrand

function u(t) {

c.width=200;for(i=2e3;j=i--/2e3;x.fillRect(i/9*C(t)+S(i)*r,S(3*j)*75+C(i)*r,6,6))r=j>.9?2:30*S(3*j+.3),x.fillStyle=R(a=r*(7-S(i*2)**8),a*.8)

Mar 20 2018 11:44 PM UTC

}// 140/140

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175 char version: https://codegolf.tk/a/265

u/joeytwiddle

#banana

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yonatan

function u(t) {

x[s='fillStyle']='#0001'
x[f='fillRect'](0,0,3e3,2e3)
for(i=1e3;i--;x[f](960+S(i)*q,540+C(i)*q,5,5))x[s]=`hsl(${q=(i**4%1e3*t)/3%i},88%,70%`

Mar 14 2018 10:54 AM UTC

}// 140/140

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u/aleamb

coooool
u/iverjo

#explosion #fireworks

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yonatan

remix of d/2370 by u/magna

function u(t) {

for(c.width|=i=9;i--;x.fill(new Path2D('M'+[530+i*99,540-a*99,b,q=a*r<0|0,50]+` 0v${200*a+b}${q^1} -50 0`)))a=C(m=i*t),b=`a1 ${r=S(m)} 0 0`

Mar 15 2018 7:01 AM UTC

}// 139/140

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cylinders

u/yonatan

Chrome only I guess...
u/magna

Smart!
u/yonatan

#default

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yonatan

remix of d/7305 by u/yonatan

function u(t) {

for(i=2e3,n=99;i--;x.fillStyle=R(q=(Y+1)*n,q/3,n-q),x.fillRect(i,t*n-(Y|0)*n,1,n*n))for(Y=0,j=4;j--;)Y+=C(((i-960)+S(t+Y)*n*j*j)/2**j/t/9)

Mar 13 2018 7:28 AM UTC

}// 139/140

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Canyons

u/yonatan

added perspective like in d/7303
u/joeytwiddle

Beautiful!
u/aleamb

great!
u/magna

(ノಥ,_｣ಥ)ノ彡┻━┻
u/joeytwiddle

#landscape #slow_render #hiddengem

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yonatan

function u(t) {

for(x.beginPath(i=1920);i--;x.lineTo(i,t*99+(Y|0)*99))for(Y=0,j=4;j--;)Y=Y+S((i+S(t+Y)*99*j*j)/(40*2**j))
x.stroke()

Mar 12 2018 11:01 AM UTC

}// 116/140

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https://twitter.com/jagarikin/status/9715426…

u/aleamb

fucking cool!
u/fujimotos

Great! This really opens up whole new space...
u/fujimotos

#landscape
u/fujimotos

#scanline
u/fujimotos

#slow_render

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yonatan

remix of d/7301 by u/yonatan

function u(t) {

for(i=1920,n=99;i--;x.fillStyle=`hsl(${Y*n},50%,${n-Y*50}%`,x.fillRect(i,t*n-(Y|0)*n,1,n))for(Y=0,j=4;j--;)Y=Y+C((i+S(t+Y)*n*j*j)/(40*2**j))

Mar 12 2018 11:54 AM UTC

}// 140/140

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Thx u/BalintCsala for shading tips

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